src/generic/printps.cpp

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        printps.cpp
   3 // Purpose:     Postscript print/preview framework
   4 // Author:      Julian Smart
   5 // Modified by:
   6 // Created:     04/01/98
   7 // RCS-ID:      $Id$
   8 // Copyright:   (c) Julian Smart and Markus Holzem
   9 // Licence:     wxWindows license
  10 /////////////////////////////////////////////////////////////////////////////
  11
  12 #ifdef __GNUG__
  13 #pragma implementation "printps.h"
  14 #endif
  15
  16 // For compilers that support precompilation, includes "wx.h".
  17 #include "wx/wxprec.h"
  18
  19 #ifdef __BORLANDC__
  20 #pragma hdrstop
  21 #endif
  22
  23 #include "wx/defs.h"
  24
  25 #ifndef WX_PRECOMP
  26 #include "wx/utils.h"
  27 #include "wx/dc.h"
  28 #include "wx/app.h"
  29 #include "wx/msgdlg.h"
  30 #endif
  31
  32 #include "wx/generic/printps.h"
  33 #include "wx/dcprint.h"
  34 #include "wx/printdlg.h"
  35 #include "wx/generic/prntdlgg.h"
  36
  37 #include <stdlib.h>
  38
  39 #if !USE_SHARED_LIBRARY
  40 IMPLEMENT_DYNAMIC_CLASS(wxPostScriptPrinter, wxPrinterBase)
  41 IMPLEMENT_CLASS(wxPostScriptPrintPreview, wxPrintPreviewBase)
  42 #endif
  43
  44 /*
  45  * Printer
  46  */
  47
  48 wxPostScriptPrinter::wxPostScriptPrinter(wxPrintData *data):
  49     wxPrinterBase(data)
  50 {
  51 }
  52
  53 wxPostScriptPrinter::~wxPostScriptPrinter(void)
  54 {
  55 }
  56
  57 bool wxPostScriptPrinter::Print(wxWindow *parent, wxPrintout *printout, bool prompt)
  58 {
  59   abortIt = FALSE;
  60   abortWindow = NULL;
  61
  62   if (!printout)
  63     return FALSE;
  64
  65   printout->SetIsPreview(FALSE);
  66   printout->OnPreparePrinting();
  67
  68   // Get some parameters from the printout, if defined
  69   int fromPage, toPage;
  70   int minPage, maxPage;
  71   printout->GetPageInfo(&minPage, &maxPage, &fromPage, &toPage);
  72
  73   if (maxPage == 0)
  74     return FALSE;
  75
  76   printData.SetMinPage(minPage);
  77   printData.SetMaxPage(maxPage);
  78   if (fromPage != 0)
  79     printData.SetFromPage(fromPage);
  80   if (toPage != 0)
  81     printData.SetToPage(toPage);
  82
  83   if (minPage != 0)
  84   {
  85     printData.EnablePageNumbers(TRUE);
  86     if (printData.GetFromPage() < printData.GetMinPage())
  87       printData.SetFromPage(printData.GetMinPage());
  88     else if (printData.GetFromPage() > printData.GetMaxPage())
  89       printData.SetFromPage(printData.GetMaxPage());
  90     if (printData.GetToPage() > printData.GetMaxPage())
  91       printData.SetToPage(printData.GetMaxPage());
  92     else if (printData.GetToPage() < printData.GetMinPage())
  93       printData.SetToPage(printData.GetMinPage());
  94   }
  95   else
  96     printData.EnablePageNumbers(FALSE);
  97
  98   // Create a suitable device context
  99   wxDC *dc = NULL;
 100   if (prompt)
 101   {
 102      wxGenericPrintDialog dialog(parent, & printData);
 103      if (dialog.ShowModal() == wxID_OK)
 104      {
 105        dc = dialog.GetPrintDC();
 106        printData = dialog.GetPrintData();
 107      }
 108   }
 109   else
 110   {
 111      dc = new wxPostScriptDC(wxThePrintSetupData->GetPrinterFile(), FALSE, NULL);
 112   }
 113
 114   // May have pressed cancel.
 115   if (!dc || !dc->Ok())
 116   {
 117     if (dc) delete dc;
 118     return FALSE;
 119   }
 120
 121   int logPPIScreenX = 0;
 122   int logPPIScreenY = 0;
 123   int logPPIPrinterX = 0;
 124   int logPPIPrinterY = 0;
 125
 126   // Correct values for X/PostScript?
 127   logPPIScreenX = 100;
 128   logPPIScreenY = 100;
 129   logPPIPrinterX = 100;
 130   logPPIPrinterY = 100;
 131
 132   printout->SetPPIScreen(logPPIScreenX, logPPIScreenY);
 133   printout->SetPPIPrinter(logPPIPrinterX, logPPIPrinterY);
 134
 135   // Set printout parameters
 136   printout->SetDC(dc);
 137
 138   int w, h;
 139   long ww, hh;
 140   dc->GetSize(&w, &h);
 141   printout->SetPageSizePixels((int)w, (int)h);
 142   dc->GetSizeMM(&ww, &hh);
 143   printout->SetPageSizeMM((int)ww, (int)hh);
 144
 145   // Create an abort window
 146   wxBeginBusyCursor();
 147
 148   printout->OnBeginPrinting();
 149
 150   bool keepGoing = TRUE;
 151
 152   int copyCount;
 153   for (copyCount = 1; copyCount <= printData.GetNoCopies(); copyCount ++)
 154   {
 155     if (!printout->OnBeginDocument(printData.GetFromPage(), printData.GetToPage()))
 156     {
 157       wxEndBusyCursor();
 158       wxMessageBox("Could not start printing.", "Print Error", wxOK, parent);
 159       break;
 160     }
 161     if (abortIt)
 162       break;
 163
 164     int pn;
 165     for (pn = printData.GetFromPage(); keepGoing && (pn <= printData.GetToPage()) && printout->HasPage(pn);
 166          pn++)
 167     {
 168       if (abortIt)
 169       {
 170         keepGoing = FALSE;
 171         break;
 172       }
 173       else
 174       {
 175         dc->StartPage();
 176         printout->OnPrintPage(pn);
 177         dc->EndPage();
 178       }
 179     }
 180     printout->OnEndDocument();
 181   }
 182
 183   printout->OnEndPrinting();
 184
 185   wxEndBusyCursor();
 186
 187   delete dc;
 188
 189   return TRUE;
 190 }
 191
 192 bool wxPostScriptPrinter::PrintDialog(wxWindow *parent)
 193 {
 194     wxGenericPrintDialog dialog(parent, & printData);
 195     return (dialog.ShowModal() == wxID_OK);
 196 }
 197
 198 bool wxPostScriptPrinter::Setup(wxWindow *parent)
 199 {
 200     wxGenericPrintDialog dialog(parent, & printData);
 201     dialog.GetPrintData().SetSetupDialog(TRUE);
 202     return (dialog.ShowModal() == wxID_OK);
 203 }
 204
 205 /*
 206  * Print preview
 207  */
 208
 209 wxPostScriptPrintPreview::wxPostScriptPrintPreview(wxPrintout *printout, wxPrintout *printoutForPrinting, wxPrintData *data):
 210   wxPrintPreviewBase(printout, printoutForPrinting, data)
 211 {
 212   // Have to call it here since base constructor can't call it
 213   DetermineScaling();
 214 }
 215
 216 wxPostScriptPrintPreview::~wxPostScriptPrintPreview(void)
 217 {
 218 }
 219
 220 bool wxPostScriptPrintPreview::Print(bool interactive)
 221 {
 222   if (!printPrintout)
 223     return FALSE;
 224   wxPostScriptPrinter printer(&printData);
 225   return printer.Print(previewFrame, printPrintout, interactive);
 226 }
 227
 228 void wxPostScriptPrintPreview::DetermineScaling(void)
 229 {
 230     const char *paperType = wxThePrintSetupData->GetPaperName();
 231     if (!paperType)
 232       paperType = "A4 210 x 297 mm";
 233
 234     wxPrintPaperType *paper = wxThePrintPaperDatabase->FindPaperType(paperType);
 235     if (!paper)
 236       paper = wxThePrintPaperDatabase->FindPaperType("A4 210 x 297 mm");
 237     if (paper)
 238     {
 239       previewPrintout->SetPPIScreen(100, 100);
 240       previewPrintout->SetPPIPrinter(100, 100);
 241
 242       // If in landscape mode, we need to swap the width and height.
 243       if ( printData.GetOrientation() == wxLANDSCAPE )
 244       {
 245         pageWidth = paper->heightPixels;
 246         pageHeight = paper->widthPixels;
 247         previewPrintout->SetPageSizeMM(paper->heightMM, paper->widthMM);
 248         previewPrintout->SetPageSizePixels(paper->heightPixels, paper->widthPixels);
 249       }
 250       else
 251       {
 252         pageWidth = paper->widthPixels;
 253         pageHeight = paper->heightPixels;
 254         previewPrintout->SetPageSizeMM(paper->widthMM, paper->heightMM);
 255         previewPrintout->SetPageSizePixels(paper->widthPixels, paper->heightPixels);
 256       }
 257
 258       // At 100%, the page should look about page-size on the screen.
 259       previewScale = (float)0.8;
 260 //      previewScale = (float)((float)screenWidth/(float)printerWidth);
 261 //      previewScale = previewScale * (float)((float)screenXRes/(float)printerYRes);
 262     }
 263 }
 264